生物固氮在集约化草地畜牧业中的作用

Biological nitrogen fixation and intensive grassland livestock husbandry

草地生物固氮不仅是草地生态系统氮素循环输入过程的重要部分,而且与集约化草地畜牧业的建立和退化草场的恢复有着重要的关系。在草地生态系统生物固氮的3种方式中,豆科植物根瘤共生固氮是重要的方式,细菌自生固氮值得重视,而联合固氮在草地生物固氮中也有着广泛的应用前景。

Grassland biological nitrogen fixation is not only an important part of nitrogen cycling in the grassland ecological system, but also important in intensive grassland livestock husbandry establishment and in recovery of degraded grassland. In grassland ecological systems, rhizobial nitrogen fixation in common leguminous plants is an important biological nitrogen fixation mode. Nitrogen fixation by bacteria themselves deserves more attention, and the associative nitrogen fixation pathway is a biological nitrogen fixation pathway that has an extensive application future.